I wonder if anyone can offer advice.  Our home gallery https://dbdt.gallery.video/ renders in two columns on my phone.  We’re in a Catalogue Portal template set up by our vendor. I’m starting to look more at how to take more control of how our gallery looks to our patrons.  I’d love it if I could just tweak a setting for the gallery to render in one column on desktops and single column on mobile. This has been pretty easy to control with our regular Wordpress website, so if I could manage it for our video gallery, too, that would be nice.  Two columns is OK, but the short descriptions are so truncated in mobile view, and more and more of our patrons visit on mobile devices. 

Thanks for any suggestions! 

John